var class_json = {
    "resultCode": 200,
    "resultMessage": "ok",
    "data": [
        {
            "id": "1",
            "classname": "01班"
        },
        {
            "id": "2",
            "classname": "02班"
        }
    ]
};

var students_json_01 = {
    "resultCode": 200,
    "resultMessage": "ok",
    "data": [
        {
            "id": "1",
            "sno": "002",
            "truename": "吴浩",
            "age": "20",
            "gender": "m",
            "tel": "321",
            "major": "ui",
            "classid": "1"
        },
        {
            "id": "2",
            "sno": "001",
            "truename": "赵永才",
            "age": "20",
            "gender": "m",
            "tel": "123",
            "major": "ui",
            "classid": "1"
        },
        {
            "id": "3",
            "sno": "001",
            "truename": "王佳伟",
            "age": "20",
            "gender": "m",
            "tel": "987",
            "major": "web",
            "classid": "1"
        },
        {
            "id": "4",
            "sno": "004",
            "truename": "王庆辉",
            "age": "20",
            "gender": "m",
            "tel": "456",
            "major": "web",
            "classid": "1"
        }
    ]
};

var students_json_02 = {
    "resultCode": 200,
    "resultMessage": "ok",
    "data": [
        {
            
            "id": "-Infinity",
            "sno": "001",
            "truename": "刘成浩",
            "age": "20",
            "gender": "f",
            "tel": "123",
            "major": "ui",
            "classid": "2"
        },
        {
            "id": "-Infinity",
            "sno": "002",
            "truename": "王豪",
            "age": "20",
            "gender": "f",
            "tel": "456",
            "major": "web",
            "classid": "2"
        },
        {
            "id": "-Infinity",
            "sno": "003",
            "truename": "王宇寻",
            "age": "20",
            "gender": "f",
            "tel": "789",
            "major": "web",
            "classid": "2"
        }
    ]
};